package com.itheima.utils;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.itheima.pojo.AliOSSProperties;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.io.InputStream;
import java.util.UUID;

/**
 * 工具类：实现文件上传到阿里云OSS
 */
@Component
public class AliOSSUtils {

 //注入配置参数实体类对象
 @Autowired
 private AliOSSProperties aliOSSProperties;


 /**
  * 实现上传图片到OSS
  */
 public String upload(MultipartFile multipartFile) throws
         IOException {
// 获取上传的文件的输入流
  InputStream inputStream = multipartFile.getInputStream();
// 避免文件覆盖
  String originalFilename =
          multipartFile.getOriginalFilename();
  String fileName = UUID.randomUUID().toString() +
          originalFilename.substring(originalFilename.lastIndexOf("."));
//上传文件到 OSS
  OSS ossClient = new
          OSSClientBuilder().build(aliOSSProperties.getEndpoint(),
          aliOSSProperties.getAccessKeyId(),
          aliOSSProperties.getAccessKeySecret());
  ossClient.putObject(aliOSSProperties.getBucketName(),fileName, inputStream);
//文件访问路径
  String url =aliOSSProperties.getEndpoint().split("//")[0] +
          "//" + aliOSSProperties.getBucketName() + "." +
          aliOSSProperties.getEndpoint().split("//")[1] + "/" + fileName;
// 关闭ossClient
  ossClient.shutdown();
  return url;// 把上传到oss的路径返回
 }
}